Public provision of private child goods

This paper analyzes the public provision of private goods for children in a politico-economic model with endogenous fertility. The government provides every child with goods that can also be purchased by parents in private markets, and the level of provision is determined by majority rule. Households with many children benefit from the public provision more than those with fewer children; thus, a political conflict arises between them. The distribution of the number of children across households, which is a crucial factor for determining which group is politically dominant, is endogenously determined by households' fertility decision. The sequential interaction between fertility and political decisions might lead to multiple equilibria: equilibrium with high fertility and low-private/public-spending ratio and equilibrium with low fertility and high-private/public-spending ratio. Our model could explain the large differences in fertility and structure of child-related spending across countries.     

Social network and private provision of public goods

Using a simple model with interdependent utilities, we study how social networks influence individual voluntary contributions to the provision of a public good. Departing from the standard model of public good provision, we assume that an agent’s utility has two terms: (a) ‘ego’-utility derived from the agent’s consumption of public and private goods, and (b) a social utility which is the sum of utility spillovers from other agents with whom the agent has social relationships. We establish conditions for the existence of a unique interior Nash equilibrium and describe the equilibrium in terms of network characteristics. We show that social network always has a positive effect on the provision of the public good. We also find that, in networks with “small world”-like modular structures, ‘bridging’ ties connecting distant parts of social network play an important role inducing an agent’s contribution to public good. Assumptions and results of the model are discussed in relation to the role of social capital in community-level development projects and to the effect of innovation networks on firms’ R&D investments.     

One-sided private provision of public goods with implicit Lindahl pricing

We consider a sequential game in which one player produces a public good and the other player can influence this decision by making an unconditional transfer. An efficient allocation requires the Lindahl property: the sum of the two (implicit) individual prices has to be equal to the resource cost of the public good. Under mild conditions this requires a personal price for the providing player that lies below half of the resource cost. These results can, for example, justify high marginal taxes on wages of secondary earners.     

Crowding out of private support to the elderly: Evidence from a demogrant in Mexico

To examine whether private support dampens or reinforces the impact of redistributive policies, this paper estimates the effect of an exogenous increase in the income of the elderly, caused by a recent demogrant in Mexico, on the amount of private transfers they receive. My instrumental variables strategy overcomes the endogeneity of income that typically contaminates estimates and, unlike related studies that use natural or policy experiments in reduced-form estimations, it yields evidence of a positive bias. This suggests that an unobservable characteristic is positively correlated both with income and private transfer receipt and that treating income as exogenous could lead to an underestimation of the crowding out effect. In contrast, my preferred estimates are negative, significant and not far from minus one, implying an almost complete crowding out. My findings suggest that private transfers could neutralize the changes in the public transfers for the elderly.     

Toward an efficiency rationale for the public provision of private goods

Public provision of a private goods is justified on efficiency grounds in a model with no redistributive preferences. A government’s involvement in the provision of a private good generates information about preferences that facilitates more efficient revenue extraction for the provision of public goods. Public provision of the private good improves economic efficiency under a condition that is always fulfilled under independence and satisfied for an open set of joint distributions. The efficiency gains require that consumers cannot arbitrage the publicly provided private good, so our analysis applies to private goods where it is easy to keep track of the ultimate user, such as schooling and health care, but not to easily tradable consumer goods.     

Rewards and the private provision of public goods on dynamic networks

We study an evolutionary model of a public good game with rewards played on a network. Giving rewards to contributors transforms the game but gives rise to a second-order dilemma. By allowing for coevolution of strategies and network structure, the evolutionary dynamics operate on both structure and strategy. Players learn with whom to interact and how to act and can overcome the second-order dilemma. More specifically, the network represents social distance which changes as players interact. Through the change in social distance, players learn with whom to interact, which we model using reinforcement dynamics. We find that, for certain parameter constellations, a social institution, prescribing prosocial behavior and thus solving the second-order dilemma, can emerge from a population of selfish players. Due to the dynamic structure of the network, the institution has an endogenous punishment mechanism ensuring that defectors will be excluded from the benefits of the institution and the public good will be supplied efficiently.     

Depreciation and intergenerational altruism in the private provision of public goods

The static model of the private provision of public goods is refuted by empirical and experimental evidence which shows that contributions are above the levels predicted by the theory. The model is reconsidered here in an intertemporal framework that allows the formation of a stock of public good over time and admits intergenerational altruism into preferences. Both of these factors affect the level of private provision. An intertemporal version of the Samuelson rule is derived and it is shown that, for some parameter values, the provision level determined by this is matched by private provision. For other parameter values, it is shown how a system of taxation can achieve the optimum.     

Employment effects of the provision of specific professional skills and techniques in Germany

Based on unique administrative data, which has only recently become available, this paper estimates the employment effects of the most important type of public sector sponsored training in Germany, namely the provision of specific professional skills and techniques (SPST). Using the inflows into unemployment for the year 1993, the empirical analysis uses local linear matching based on the estimated propensity score to estimate the average treatment effect on the treated of SPST programs by elapsed duration of unemployment. The empirical results show a negative lock-in effect for the period right after the beginning of the program and significantly positive treatment effects on employment rates of about 10 percentage points and above a year after the beginning of the program. The general pattern of the estimated treatment effects is quite similar for the three time intervals of elapsed unemployment considered. The positive effects tend to persist almost completely until the end of our evaluation period. The positive effects are stronger in West Germany compared to East Germany.     

Public pension and household saving: Evidence from urban China

We relate household savings to pension reform, to explain the high household savings rates in urban China from a new perspective. We use the exogenous – policy-induced – variation in pension wealth to estimate explicitly the impact of pension wealth on household savings, and obtain evidence of a significant offset effect of pension wealth on household savings. Although the size of the effect depends on the parameter values assumed, the finding that household savings are affected by pension reform is robust. Our estimates show that, under plausible scenarios, pension reform boosted household savings rates in 1999 by about 6–9 percentage points for cohorts aged 25–29 and by about 2–3 percentage points for cohorts aged 50–59. Our results also indicate that declining pension wealth reduces expenditure on education and health more than on other consumption items.     

Electricity provision and industrial development: Evidence from India

I investigate the effect of electricity provision on industrialization using a panel of Indian states for 1965-1984. To address the endogeneity of investment in electrification, I use the introduction of a new agricultural technology intensive in irrigation (the Green Revolution) as a natural experiment. As electric pumpsets are used to provide farmers with cheap irrigation water, I use the uneven availability of groundwater at the start of the Green Revolution to predict divergence in the expansion of the electricity network and, ultimately, to quantify the effect of electrification on industrial outcomes. I present a series of tests to show that the electrification channel remains the most important one among alternative explanations that could link groundwater availability to industrialization directly or indirectly. Results show that an increase in one standard deviation in the measure of electrification is associated with an increase of around 14% in manufacturing output for a state at the mean of the distribution.     

Subprime crisis and board (in-) competence: private versus public banks in Germany

We examine evidence for a systematic underperformance of Germany's state-owned banks in the current financial crisis and study if the bank losses can be traced to the quality of bank governance. For this purpose, we examine the biographical background of 592 supervisory board members in the 29 largest banks and find a pronounced difference in the finance and management experience of board representatives across private and state-owned banks. Measures of 'boardroom competence' are then related directly to the magnitude of bank losses in the recent financial crisis. Our data confirm that supervisory board (in-)competence in finance is related to losses in the financial crisis. Improved bank governance is therefore a suitable policy objective to reduce bank fragility.
— Harald Hau and Marcel Thum     

The impacts of social pension on rural household expenditure: evidence from China

In 2009, China began to implement a new social pension scheme in rural areas. We examine the impacts of this social pension on two main components of rural household expenditure, consumption and agricultural production investment. Our findings show that on average, rural households increase consumption by 1–3% and agricultural investment by as high as 6–9% in pilot counties. Further estimations reveal that the pension mainly affects the households with old-aged members and the poorer families, and that the saving rate hasn’t been changed by the pension, which support more the contingent income than the life-cycle hypothesis. We also find that among various types of expenditures, the most dramatic increases have occurred in food consumption and operational inputs on agricultural production.     

Marriage and trust: some lessons from economics

This paper examines the role of marriage as an institution forproviding couples with the confidence to make long-term investmentsin their relationship. No-fault divorce has undermined the notionof marriage as a contract, thereby reducing the security offeredby marriage and promoting opportunism by men. This has weakenedthe bargaining power of wives, both within marriage and whendivorce occurs. Current legal reforms will improve the economicposition of all divorced wives, including those who are primarilyresponsible for the breakdown of their marriage. The latterfeature will encourage opportunism by women and make men lessprepared to invest in their marriage. The paper argues thatthe only way to achieve parity between men and women, and deteropportunism by either sex, is to return to fault-based divorce.Both divorce settlements and the custody of children shoulddepend on preceding marital conduct.     

The public and private provision of pure public goods and the distortionary effects of income taxation: a political economy approach

Abstract .  A pure public good is provided by the government and the voluntary contributions of two types of households. The government finances its contribution by means of income taxation. The latter has distortionary effects. A third type of household never makes contributions. We analyse the effects of changes in the income tax rate on (a) the provision of the public good, (b) the private contributions of the households, and (c) changes in the distribution of income and welfare between contributing and non-contributing households. We derive a simple and testable condition under which the lowering of the income tax entails a Pareto improvement.     

Economic Factors of Victimization: Evidence from Germany

Victimization is a poorly studied topic in economic research. This paper considers economic factors of victimization using individual data. It tests the rational‐choice‐based hypothesis that the more attractive and poorly guarded targets are facing a higher risk of victimization. The used dataset also covers own criminal activities such that individual offending behavior can be studied as endogenous driver of victimization. Econometric results confirm that a criminal background is one of the major reasons of own victimization. In line with rational choice behavior of offenders, victimization is also associated with being a job holder and more schooling. Moreover, large peer groups increase the risk of victimization, whereas married and healthy people have a significantly lower risk of becoming a crime victim.     

Price regulation of drugs: Lessons from Germany

This paper purports to explain the pricing policy of pharmaceutical companies in Germany prior and after the introduction of reference prices (RP) in 1989. First, the threat of such regulation may have kept prices finite despite a completely insured market. Next, the pricing policies of both the producer of an innovative drug and of a competing generic under RP are predicted. These predictions are then confronted with actual pricing policy for three products in the guise of case studies. Finally, the impact of modified copayment rules on pricing decisions is analyzed.The authors would like to thank Dr Michael Wiegand (Bonn) for valuable information and two anonymous referees for helpful criticisms.     

德国发布《生物炼制路线阁》人力推进生物经济发展

在未来的生物经济时代,生物炼制是从生物质原材料到最终产品实现的生产链条上关键的一环.为进一步促进生物炼制技术成熟化和市场化,2012?年,德国联邦政府发布了《生物炼制路线图》,该路线图明确界定了生物炼制技术发展需求、政策背景、内涵体系和技术领域,分析了德国生物炼制技术发展现状、优势劣势和风险挑战,并规划了德国生物炼制技术未来行动领域.